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Task Force Report: G G e e n n e e r r a a t t i i n n g g A A v v a a i i l l a a b b i i l l i i t t y y D D a a t t a a S S y y s s t t e e m m : : M M a a n n d d a a t t o o r r y y R R e e p p o o r r t t i i n n g g o o f f C C o o n n v v e e n n t t i i o o n n a a l l G G e e n n e e r r a a t t i i o o n n P P e e r r f f o o r r m m a a n n c c e e D D a a t t a a February 18, 2011

Mandatory Reporting of Conventional Generation Performance ... Availability Data System Workin… · variable energy resources (wind, solar), nuclearand demand/energy efficiency resources

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  • TTaasskk FFoorrccee RReeppoorrtt:: GGeenneerraattiinngg AAvvaaiillaabbiilliittyy DDaattaa SSyysstteemm::

    MMaannddaattoorryy RReeppoorrttiinngg ooff CCoonnvveennttiioonnaall GGeenneerraattiioonn PPeerrffoorrmmaannccee DDaattaa

    February 18, 2011

  • Generating Availability Data System Task Force Report i February 18, 2011

    NERC’s Mission

    The North American Electric Reliability Corporation (NERC) is an international regulatory authority to evaluate reliability of the bulk power system in North America. NERC develops and enforces Reliability Standards; assesses adequacy annually via a 10-year forecast and winter and summer forecasts; monitors the bulk power system; and educates, trains, and certifies industry personnel. NERC is the electric reliability organization in North America, subject to oversight by the U.S. Federal Energy Regulatory Commission (FERC) and governmental authorities in Canada.1

    NERC assesses and reports on the reliability and adequacy of the North American bulk power system divided into the eight Regional Areas as shown on the map below (see Table A). The users, owners, and operators of the bulk power system within these areas account for virtually all the electricity supplied in the U.S., Canada, and a portion of Baja California Norte, México.

    Note: The highlighted area between SPP and SERC denotes overlapping regional area boundaries: For example, some load serving entities participate in one region and their associated transmission owner/operators in another.

    1 As of June 18, 2007, the U.S. Federal Energy Regulatory Commission (FERC) granted NERC the legal authority to enforce

    Reliability Standards with all U.S. users, owners, and operators of the bulk power system, and made compliance with those standards mandatory and enforceable. In Canada, NERC presently has memorandums of understanding in place with provincial authorities in Ontario, New Brunswick, Nova Scotia, Québec, and Saskatchewan, and with the Canadian National Energy Board. NERC standards are mandatory and enforceable in Ontario and New Brunswick as a matter of provincial law. NERC has an agreement with Manitoba Hydro, making reliability standards mandatory for that entity, and Manitoba has recently adopted legislation setting out a framework for standards to become mandatory for users, owners, and operators in the province. In addition, NERC has been designated as the “electric reliability organization” under Alberta’s Transportation Regulation, and certain reliability standards have been approved in that jurisdiction; others are pending. NERC and NPCC have been recognized as standards setting bodies by the Régie de l’énergie of Québec, and Québec has the framework in place for reliability standards to become mandatory. Nova Scotia and British Columbia also have a framework in place for reliability standards to become mandatory and enforceable. NERC is working with the other governmental authorities in Canada to achieve equivalent recognition.

    Table A: NERC Regional Entities

    FRCC Florida Reliability Coordinating Council

    SERC SERC Reliability Corporation

    MRO Midwest Reliability Organization

    SPP Southwest Power Pool, Incorporated

    NPCC Northeast Power Coordinating Council

    TRE Texas Reliability Entity

    RFC ReliabilityFirst Corporation

    WECC Western Electricity Coordinating Council

  • Table of Contents

    Generating Availability Data System Task Force Report ii February 18, 2011

    TTaabbllee ooff CCoonntteennttss

    NERC’s Mission ..................................................................................................................... I

    Executive Summary .............................................................................................................. 1

    1. Introduction ....................................................................................................................... 3

    2. Analysis of Voluntary versus Mandatory GADS Conventional Generation Reporting ....... 9

    3. Conclusions and Recommendations ............................................................................... 13

    4. Action Plan for Mandatory Data Collection ..................................................................... 16

    Appendix I: GADS Task Force Scope ................................................................................. 17

    Appendix II: GADS Task Force Subgroup Questions ......................................................... 18

    Appendix III: GADS Task Force Design, Event and Performance Recommendations ........ 19

    Appendix IV: GADS Task Force Subgroup Reports ............................................................ 40

    Appendix V: Rules of Procedure Section 1600 Justification ................................................ 51

    Appendix VI: GADS Data Release Guidelines .................................................................... 58

    Appendix VII: Examples of GADS Helping the Electric Industry ......................................... 61

    Appendix VIII: GADS Task Force Roster ............................................................................ 64

    Appendix IX: NERC Staff Roster ........................................................................................ 68

  • Executive Summary

    Generating Availability Data System Task Force Report 1 February 18, 2011

    EExxeeccuuttiivvee SSuummmmaarryy Introduction The electric industry is projecting an unprecedented change in the existing North American resource mix of over one million megawatts (MW) as it reduces the use of coal-fired units, while increasing gas-fired, variable energy resources (wind, solar), nuclear, and demand/energy efficiency resources. Industry must make an ongoing effort to redefine practices such as technology behavior, operating characteristics, and optimal planning approaches with the evolution of the resource mix to properly assess reliability and improve performance analysis. NERC’s Generating Availability Data System (GADS) has been used to collect equipment performance voluntarily from generator owners for over three decades. The data is used to calculate important performance statistics and supports bulk power trend analysis by providing information on forced outages, maintenance outages, planned outages, and deratings.

    The North American Electric Reliability Corporation’s (NERC) mission is to ensure the reliability of the North American bulk power system.2 With that responsibility, NERC and its stakeholders require accurate data provided in a timely fashion to assess projected bulk power system reliability as well as analyze its ongoing performance and reliability risk for individual, regional, and interconnection-wide planning. The GADS database is vital to support NERC in its assessment of bulk power system reliability. However, industry participation is voluntary. Therefore, in June 2010, the NERC Planning Committee (PC) created the Generating Availability Data System Task Force (GADSTF) to “review and recommend whether Generation Owners on the NERC Compliance Registry should report GADS data on a mandatory basis.”3

    This report focuses on conventional generation (fossil, nuclear, hydro/pumped storage, combined cycle, etc.) data being collected on a voluntary basis as a way to measure any deficiencies to the current approach and benefits from mandatory data collection. Variable energy resources, such as wind and solar, will be assessed in a separate, future report.

    Further, the GADSTF was asked to investigate what data reported to GADS should be mandatory and how to make GADS reporting mandatory.

    Analysis of Voluntary and Mandatory GADS Conventional Generation Reporting Generating unit performance information/data is critical to determining Planning Reserve Margin requirements and performance trends, especially as the mix of resources begins to include more contribution from new resource types like wind or other intermittent sources. Therefore, sufficient information/data must be gathered to obtain a complete historical assessment and to understand unit life-cycle performance. Currently, however, not all Generator Owners contribute conventional generation data to GADS. With voluntary data submittal, data provided by generator owners represent over 72.4 percent of the existing capacity (20 MW and larger) in North America. This means that nearly 291 GW of capacity is excluded from GADS design and performance data. Table ES-1 below compares the data collected through GADS, and the data provided for capacity requirements in the Long-Term Reliability Assessment (LTRA). 2 NERC has been appointed as the electric reliability organization (ERO) for the United States and has similar authority in Canada

    and Mexico 3 As identified by the GADSTF scope. See Appendix 1 of this report.

  • Executive Summary

    Generating Availability Data System Task Force Report 2 February 18, 2011

    All Regions are affected by missing data to GADS, particularly Northeast Power Coordinating Council (NPCC), Texas Reliability Entity (TRE), and Western Electric Coordinating Council (WECC), which are missing more than 30 percent of the GADS generation. GADS is missing nearly 25 percent and 80 percent of the existing generation from the U.S. and Canada respectively.

    The United States government tracks new power plants entering service through the Energy Information Administration (EIA) Form 860. During the period of 2000-2008, GADS is missing almost 49 percent of the new capacity entering service in the US.

    In addition, for those units that report to GADS, design/unit population information is not routinely updated, and vetting of data submittals for completeness is not performed.

    Without complete reporting, performance measures are created from samples of an incomplete and unverified population with unknown statistical certainty and confidence levels. Evidence clearly shows that voluntary data submittal cannot support NERC’s need to measure and assess historical or projected unit performance. The existing GADS database is incomplete, missing performance data and design data from generator owners and operators from key areas. With incomplete data from generator owners and operators, it is impossible to quantify their impacts on bulk power system reliability.

    Conclusions and Recommendations The GADSTF recommends that mandatory GADS reporting for conventional generating units begin January 1, 2012. GADS data will be due 30 days after each calendar quarter. The first mandatory data will be from January 1 to March 31, 2012 and will be due to NERC no later than April 30, 2012. GADS data will be collected from all generator owners on the NERC Compliance Registry under NERC’s Rules of Procedure Section 1600, Requests for Data or Information.

    This recommendation will improve NERC’s reliability assessments and performance analysis, while not overburdening the industry. Further, this recommendation balances NERC’s current approach to collect similar information on the bulk power system infrastructure, such as bulk transmission and demand response performance data through Transmission Availability Data System (TADS) and Demand Response Availability Data System (DADS). Like these existing systems, GADS data will continue to be confidential under NERC’s Rules of Procedure, Section 1500: Confidential Information.

    Table ES-1 Percent of Reported Units by Region in North America

    Conventional Units 20 MW or Larger

    Region

    2010 LTRA "Existing Certain"

    (Summer) Capacity (MW)

    2009 GADS Summer NDC (June - August) Reported Capacity

    (MW)

    % GADS MW

    Reported FRCC 50,548 43,640 86.3% MRO 53,815 44,672 83.0% NPCC 152,047 54,477 35.8% RFC 210,489 201,632 95.8% SERC 245,148 185,309 75.6% SPP 54,081 43,215 79.9% TRE 85,581 57,471 67.2% WECC 203,923 133,529 65.5% 1,055,632 763,945 72.4%

  • Introduction

    Generating Availability Data System Task Force Report 3 February 18, 2011

    11.. IInnttrroodduuccttiioonn Background Currently, the North American supply-side resource mix consists of over one million MW. The electric industry is now projecting an unprecedented change in the existing resource mix as it reduces the use of coal-fired units, while increasing gas-fired, variable energy resources (wind, solar), nuclear and demand/energy efficiency resources. Some of this change is driven by discovery of new natural gas resources, current United States Environmental Protection Agency (EPA) rulemaking, existing environmental regulations, state/regional driven resource initiatives, and also the potential for federal carbon initiatives. In addition, a structural change in infrastructure is projected to change with the implementation of smart grid devices and systems.

    This evolution in resource mix will require the electric power industry to gain experience with generating resource technology behavior, operating characteristics, and optimal planning approaches in order to properly assess reliability or improve performance analysis. NERC’s mission is to ensure the reliability of the North American bulk power system. With that responsibility, NERC and its stakeholders require high quality, accurate data provided in a timely fashion to assess the projected bulk power system reliability and analyze its ongoing performance for individual, Regional and interconnection-wide planning. Further, as new technologies are integrated into the bulk power system, a complete set of design, event, performance, and renewable data will be critical to planners and operators for use in resource adequacy and operations planning to ensure bulk power system reliability.

    Reliability Assessment Improvement Projections of system demand and resources are used to assess whether sufficient resources will exist to meet extreme weather conditions, accommodate demand forecast errors, and remain capable of responding to unexpected generating unit forced outages. Some sub-regions use the data to develop reserve requirements to be purchased in the capacity market.

    Understanding the performance of existing and new resource technologies is essential to comprehending the reliability of the projected bulk power system in North America. NERC and its stakeholders need to understand how measurements of projected system reliability, such as expected un-served energy, change with the resource mix, and associated infrastructure to understand resource availability/performance. Timely provision of accurate and well-vetted unit performance data is essential, especially as the resource mix is projected to transition through an unprecedented change.

    Performance Analysis Improvement NERC is developing a portfolio of risk information to quantify bulk power system reliability, including condition-driven reliability indicators,4 standards/statute-driven violation risk measures,5 and event-driven risk indices,6

    4 The details of reliability indicators are available at

    as illustrated in Figure 1-1.

    http://www.nerc.com/docs/pc/rmwg/RMWG_Metric_Report-09-08-09.pdf 5 Detailed standards/statute-driven risk measure proposals are available at http://www.nerc.com/filez/pmtf.html 6 See NERC’s TADS, GADS and Event Analysis Databases

    http://www.nerc.com/docs/pc/rmwg/RMWG_Metric_Report-09-08-09.pdf�http://www.nerc.com/filez/pmtf.html�

  • Introduction

    Generating Availability Data System Task Force Report 4 February 18, 2011

    Figure 1.1 Conceptual Risk Model for Bulk Power System

    Performance and risk analysis is vital to support NERC’s key goal of spotlighting key areas for reliability improvement through trend evaluation and root-cause analysis. For example, historically, to avoid events that present risk, the bulk power system has been designed using deterministic criteria to limit the magnitude of events. This deterministic criterion is based upon experienced engineering judgment. This “defense in depth” approach can benefit from risk-informed prioritization, which accommodates the changing nature of the bulk power system, providing feedback on performance improvement activities.

    This effort also uses historical event data to develop a severity metric risk measurement tool to establish the bulk power system’s characteristic performance curve. This curve would then be applied prospectively for particular risk events and performance assessments as well as providing groundwork for developing cost avoidance parameters. Performance data for transmission facilities and generating units is critical to develop a family of risk severity curves representative of interconnection performance against this reference curve. Further, risk analysis can support prioritization of NERC’s Reliability Standards and compliance activities.

    A family of curves focused on structural issues (i.e. interconnection), components issues (i.e. generation, transmission, etc.), and trend evaluations (grouping events by causes) can be developed. This approach has been used by NERC to develop a Severity Risk Curve (See Figure 1-2).7

    7

    http://www.nerc.com/docs/pc/rmwg/Integrated_Bulk_Power_System_Risk_Assessment_Concepts_Final.pdf

    http://www.nerc.com/docs/pc/rmwg/Integrated_Bulk_Power_System_Risk_Assessment_Concepts_Final.pdf�

  • Introduction

    Generating Availability Data System Task Force Report 5 February 18, 2011

    Figure 1-2

    Example - Bulk Power System Risk Assessment for Risk-Significant Events

    The occurrence of these events (events/year) are derived from existing databases, including disturbance analysis, Generating Availability Data System (GADS), Transmission Availability Data System (TADS), and the electricity supply & demand (ES&D) databases. The vertical logarithmic axis of the curve displays integrated severity values. This curve is created by taking all recorded risk events and using a risk event severity scale to determine the risk event’s severity. Then the risk events are sorted in descending order and what has emerged is a power distribution curve. In other words, events are ranked by relative severity levels to quantify the impact. Impact is measured in multiple dimensions, including load loss (as a proxy for customers) and loss of facilities (generators, transmission circuits and transformers). These measures provide a numerical ranking to determine which events are more important to maintaining system reliability.

    To calculate and measure both event-driven and condition-driven risk, detailed event, and performance information is vital. The data needed for this analysis must be collected on a consistent basis and thoroughly vetted with full, up-to-date representation of the component population.

    High Quality/Complete Data for Planning and Maintaining Reliability In order to have a more complete and accurate picture of the generation side of the equation, it is vital to have a broader, higher population of availability data from generating units in all parts of the NERC footprint. The inadequate population of availability data from generating units within the current GADS database cannot provide a full representation for resource planners and operators to analyze and project to a high degree of accuracy the future of bulk power system requirements. Only a mandatory generation database can provide the missing data to support this very important task. GADS data is critical to ongoing improvements required to sustain reliability assessments and performance analysis (See Figure 1-3).

    1.00

    1.50

    2.00

    2.50

    3.00

    3.50

    4.00

    4.50

    0.00 0.10 0.20 0.30 0.40 0.50

    2003 Eastern Interconnection Blackout

    1996 Western – August 10

    1989 Quebec – Solar Flare

    2008 South Florida

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    Cumulative Normalized Occurrences/Year

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    HILF Events

    Less Severe Events

  • Introduction

    Generating Availability Data System Task Force Report 6 February 18, 2011

    Figure 1-3

    GADS improves Reliability Assessments & Performance Analysis

    GADS Data Collection: Voluntary versus Mandatory Reporting NERC introduced GADS in 1982. This series of databases is used to voluntarily collect, record, and retrieve operating information for improving the performance of electric generating equipment. It also provides assistance to those researching the vast amounts of information on power plant availability stored within its database. The information is used to support equipment reliability and availability analyses and decision-making by GADS data users such as system planners, generation owners, assessment modelers, manufacturers, contract, and regulatory organization, etc8. Reports from GADS are now used by many countries for benchmarking and analyzing electric power plants and their performance. It has become an international standard for collection of generation performance data with 11 million outage records available and accessible for studies relating to improved generator reliability.9

    GADS collects the equipment problems by classes of outage and then calculates important statistics like Equivalent Forced Outage Rates (EFOR) and Equivalent Forced Outage Rate – Demand (EFOR

    d

    8 See Appendix VII for examples of GADS applications to the industry over the last 29 years.

    ). By

  • Introduction

    Generating Availability Data System Task Force Report 7 February 18, 2011

    calculating these statistics using IEEE 762 procedures10

    Further, GADS collects information on fuels burned and fuel switching activities (coal to gas, oil to gas, and bio-fuels to other fuels) to expand the data analysis flexibilities of resource planners and others. For example, the design database shows the changes in unit performance as new environment equipment is added or removed. It has the capability to record the impact of turning a base-loaded unit into cycling operating mode due to increased renewable units coming on line. Unexplored analyses like age, unit designs, fuel-switching, and others physical changes are also collected in GADS.

    , the analyst has high confidence that the numbers are calculated in a uniform process using an industry-approved method. Analysis of GADS data supports access to trends by providing information on forced, maintenance and planned outages and deratings. However, incomplete datasets with reduced populations creates a high degree of uncertainty, which significantly reduces and weakens the industry’s ability to understand and meet performance targets.

    Currently, GADS is a voluntary database. However, it has now become vital to support NERC in its assessment of future bulk power system reliability, assessment of its current state, as well as the determination of the benefits if the NERC data request was converted from voluntary to mandatory.

    In June 2010, the PC created the Generating Availability Data System Task Force (GADSTF). As identified in its scope, “The Generating Availability Data System (GADS) Task Force (TF) will review and recommend whether Generation Owners on the NERC Compliance Registry should report GADS data on a mandatory basis”. Further, the GADSTF was asked to investigate if GADS reporting should be mandatory and if so, what data should be mandatory. This change would convert the current voluntary reporting of design, event and performance data to mandatory reporting.

    As a first step, this report focuses on the current data collected on a voluntary basis to understand if there is a need for mandatory reporting of generation in North America. Further, the task force11

    Information on generating unit performance is a critical measure needed to determine Planning Reserve Margin requirements, especially as the mix of resources begins to include more contribution from new resource types like wind or other intermittent sources. Therefore, sufficient information/data must be gathered to obtain a complete historical assessment and to understand unit life-cycle performance. At the same time, it would not be efficient to collect data that has no long-term value to resource planners or to generation operators. Therefore, the GADSTF was given additional guidelines for their work:

    initially focused on conventional generation (fossil, nuclear, hydro/pumped storage, combined cycle, etc.) and not renewable (wind and solar) units. These variable energy resources will be covered in a future report.

    1. The task force should focus on and capture the types of data that are clearly linked to improvements in grid reliability.

    2. The task force should strive to identify the optimum mechanics or methods that manage data such that mandatory reporting burdens are minimized.

    3. The value of task force efforts and the results should be clearly visible to those who provide the data, as well as those regulatory entities who manage and administer the data.

    9 For GADS Data Reporting Instruction, see http://www.nerc.com/page.php?cid=4|43|45 10 The Institute of Electrical and Electronic Engineers’ (IEEE) Standard 762, “Definitions for Reporting Electric Generating Unit

    Reliability, Availability and Productivity” 11 See Appendix I for the GADS Task Force scope and Appendix VII for the Task Force Roster.

    http://www.nerc.com/page.php?cid=4|43|45�

  • Introduction

    Generating Availability Data System Task Force Report 8 February 18, 2011

    Task Force Organization The GADSTF was initially divided into four subgroups for this review, as shown below, and asked to address the eight questions included in Appendix II:

    1. Design records characteristics of the major equipment at each unit such as manufacturer, model number, number of fans or pumps, and other relevant information (see Appendix E of the GADS Data Reporting Instructions).12

    2. Event records contain detail information about when and to what extent the generating unit could not generate power. There are certain elements of the event records that are currently required reporting; other parts are optional reporting. See Section III of the GADS Data Reporting Instructions.

    3. Performance records track monthly generation, unit-attempted starts, actual starts, summary event outage information and fuels. See Section IV of the GADS Data Reporting Instructions.

    4. Renewable Units database tracks wind energy production and causes of wind plant output reductions on a monthly basis. The system can be adapted to collect wind information for other reporting time periods.

    Following the Resource Issues Subcommittee (RIS) review, it was decided that renewable units would be investigated under a separate report and removed from this report. GADSTF reports on each of the remaining three subgroups (design, event and performance) are located in Appendix IV of this report. It should be noted that not all GADSTF recommendations could not be justified (certain units excluded from event reporting, for example) and, therefore, were not accepted by the RIS. After further review by the appropriate subgroups, those unjustified recommendations were dropped. All other recommendations are listed in this report in Chapter 3.

    Report Organization

    The following chapters of this report are:

    • Analysis of the 2009 unit populations contained in the GADS database to the 2010 Long-Term Reliability Assessment (LTRA) data to justify mandatory GADS reporting.

    • Report conclusions and recommendation.

    • Proposed schedule for mandatory reporting

    This report contains a number of appendices to support the recommendation of mandatory GADS. These appendices are located at the back of the report.

    12 The GADS Data Reporting Instructions are located at http://www.nerc.com/page.php?cid=4|43|45

    http://www.nerc.com/page.php?cid=4|43|45�

  • Analysis of Voluntary Versus Mandatory GADS Conventional General Reporting

    Generating Availability Data System Task Force Report 9 February 18, 2011

    2. AAnnaallyyssiiss ooff VVoolluunnttaarryy vveerrssuuss MMaannddaattoorryy GGAADDSS CCoonnvveennttiioonnaall GGeenneerraattiioonn RReeppoorrttiinngg The 2010 LTRA data was used to compare against the 2009 GADS summer reports. At the time of this report, the 2010 GADS data was not complete and the summer (June-August 2010) data for all GADS units was not available. Therefore, the 2010 LTRA and the 2009 GADS data were two most recent datasets. The LTRA Existing Certain (summer) Capacity was compared against the GADS Net Dependable Capacity (NDC).

    In Table 2.1 below, only units 20 MW and larger were selected from the two databases. The reason for 20 MW and larger is that the GADSTF recommends that data on the performance of these units should collected on a mandatory basis as it is important to make comparisons against the unit MW size and unit types requested in the Section 1600.

    Table 2.1 shows a comparison between the LTRA and GADS for each region. Both the U.S. and Canada are represented in this Table. For some regions, the LTRA and GADS data are very similar, such as RFC, and may be attributed to Regional Transmission Organization/Independent System Operator (RTO/ISO) market rules requiring submittal of GADS data to the RTO/ISO. However, other regions’ LTRA data are quite different from GADS like the NPCC, WECC, and TRE regions. These differences can only be contributed to the lack of voluntary reporting by the generating companies or incomplete reporting of all units by reporting companies. For example, one GADS reporting company reports their fossil and nuclear generating units to GADS but not their gas turbines, combined cycles, or hydro units. Missing and incomplete reporting translates to the missing generation. Table 2.1 shows that just 72.4 percent of the MWs reporting to GADS are in the LTRA dataset. This equates to 291.7 GW missing in GADS.

    Table 2.1 Percent of Reported GADS Data by Region in North America

    Conventional Units 20 MW and Larger

    Region

    2010 LTRA "Existing Certain" (Summer)

    Capacity (MW)

    2009 GADS Summer NDC (June - August) Reported

    Capacity (MW) % GADS MW

    Reported FRCC 50,548 43,640 86.3% MRO 53,815 44,672 83.0% NPCC 152,047 54,477 35.8% RFC 210,489 201,632 95.8% SERC 245,148 185,309 75.6% SPP 54,081 43,215 79.9% TRE 85,581 57,471 67.2% WECC 203,923 133,529 65.5% 1,055,632 763,945 72.4%

    When the data is divided between the US and Canada, the capacity reported to GADS from the US is 78.6 percent and 23.7 percent from Canada. See Tables 2.2 and 2.3. The majority of Canadian generating

  • Analysis of Voluntary Versus Mandatory GADS Conventional General Reporting

    Generating Availability Data System Task Force Report 10 February 18, 2011

    companies have reported to the Canadian Electricity Association (CEA) for years. CEA data reporting is voluntary like GADS. As a result, GADS and CEA are teaming together to convert the CEA event data to GADS format so it can be added to GADS. There is still some work by CEA to gather performance information for GADS. The work to move CEA data to GADS has been transpiring for several years but it is hoped the CEA work will be completed in 2011 because of the need for GADS to be mandatory and many Canadian generating companies follow the NERC Rules of Procedure.

    Table 2.2 Percent of Reported GADS Data by Region

    Conventional Units 20 MW and Larger in the United States

    Region

    US 2010 LTRA "Existing Certain"

    (Summer) Capacity (MW)

    US 2009 GADS Summer NDC (June - August)

    Reported Capacity (MW) US Units % Capacity Reported To GADS

    FRCC 50,548 43,640 86.3% MRO (US) 45,158 44,672 98.9% NPCC (US) 65,012 35,571 54.7% RFC 210,489 201,632 95.8% SERC 245,148 185,309 75.6% SPP 54,081 43,215 79.9% TRE 85,581 57,471 67.2% WECC (US) 179,001 123,814 69.2% 935,018 735,324 78.6%

    Table 2.3

    Percent of Reported GADS Data by Region Conventional Units 20 MW and Larger in Canada

    Region

    Canada 2010 LTRA "Existing Certain"

    (Summer) Capacity (MW)

    Canada 2009 GADS Summer NDC (June - August)

    Reported Capacity (MW)

    Canada Units % Capacity Reported To

    GADS MRO (Canada) 8,657 0 0.0% NPCC (Canada) 87,035 18,906 21.7% WECC (Canada) 24,922 9,715 39.0% 120,614 28,621 23.7%

    In Table 2.4, unit types in the Electricity Supply and Demand (ES&D) database, used to support NERC’s LTRA, were compared to the GADS unit-type data. Comparison results show that the majority of missing existing generation in GADS (42.9 percent) is combined cycle facilities, the most popular newly constructed unit for capacity in North America. In addition to the combined cycle units, almost 55 percent of all existing hydro/pumped storage units, over 30 percent of existing gas turbines, and 14 percent of the existing fossil generation are not in GADS. These results point to GADS missing important generating units.

  • Analysis of Voluntary Versus Mandatory GADS Conventional General Reporting

    Generating Availability Data System Task Force Report 11 February 18, 2011

    Table 2.4

    Percent of Missing GADS Data by Unit Types Conventional Units 20 MW and Larger In North America

    Types of Generating Units Percent of Missing Capacity in GADS Compared to

    Long-Term Assessment Data Combined cycle generation 42.9% Gas turbine - simple cycle 31.3%

    Hydro-Pumped storage 54.7% Fossil 14.3%

    Nuclear 13.6%

    The United States government tracks new power plants entering service through the Energy Information Administration (EIA) Form 860. During the period of 2000-2008, the EIA reported that 4,531 generating units totaling 296,200 MW started commercial operation. During the same period, 1,059 units with 151,437 MW were reported to GADS. GADS is missing almost 49 percent of the new MWs entering service in the US. (Please see Table 2.3 below.) GADS records show that only 7 new units were reported by the Canadian reporting companies (749 MW total).

    Table 2.5 Percent of Missing New Generating Units Not Reporting to GADS

    Conventional Units 20 MW and Larger in the United States

    Number of New , Commercial -

    operating Generating Units in GADS (2000-2008)

    Total NDC MW Capacity from New Commercial Units in GADS (2000-2008)

    Number of New, Commercial-

    operating Generating Units in EIA Form 860

    (2000-2008)

    Total MW Capacity from New

    Commercial Units in EIA Form 860 (2000-2008)

    Percent of New, Commercial-

    operating Unit MW Capacity Missing in

    GADS 1,059 151,437 4,531 296,200 48.9%

    There is one other important part of the missing capacity to check. In Table 2.6, we look at five major types of units and their contribution to each region. The Table shows the percent of capacity missing from GADS. The percent may look large because the LTRA and GADS capacity are not close to each other. But the important is look at the amount of capacity different. If the missing capacity for each unit type is small (say, less than 500 MWs), then the representation of that group by unit type is not important and can be excused. That unit type is well represented by the existing voluntary collected capacity in GADS. However, if there is a large difference (greater than 2,000 MW) missing, then there is a major problem that cannot be excused and there is a need to close the gap between the two LTRA and GADS numbers. In reviewing Table 2.6, there are problems of major capacity gaps in all 8 regions. Thus there is need for increased reporting is all the regions, some more than others.

    In summary, the majority of missing GADS data is from new, commercial units and new generating unit technologies. We also missing large amounts of capacity from older units in GADS are various technologies needed to better evaluate the generation mix for most regions. We can only conclude that without the missing units, we are working with incomplete, inadequate data for completely analyzing regional reliabilities. Measuring bulk power system reliability severity and risks from events is limited or impossible with the incomplete data submittal currently experienced.13

    13 2010 Long-Term Reliability Assessment, section on severity risk curves

  • Analysis of Voluntary Versus Mandatory GADS Conventional General Reporting

    Generating Availability Data System Task Force Report 12 February 18, 2011

    Table 2.6:

    Comparison of LTRA and GADS by Region and Unit Type Conventional Units 20 MW and Larger in North America

    Region Types of

    Generating Units

    MW in LTRA Report by Region

    and Unit Type

    MW in GADS by Region and Unit

    Type

    Percent of Missing Capacity in GADS

    Compared to LTRA FRCC Combined cycle generation 16,692 15,144 9.3% Gas turbine - simple cycle 6,702 6,498 3.0% Hydro-Pumped storage 0 0 0.0% Fossil 23,301 18,073 22.4% Nuclear 3,853 3,925 -1.9% MRO Combined cycle generation 5,427 3,165 41.7% Gas turbine - simple cycle 8,087 10,270 -27.0% Hydro-Pumped storage 8,634 2,560 70.3% Fossil 27,650 25,179 8.9% Nuclear 4,017 3,498 12.9% NPCC Combined cycle generation 26,325 6,028 77.1% Gas turbine - simple cycle 6,619 3,645 44.9% Hydro-Pumped storage 57,382 8,364 85.4% Fossil 38,941 28,050 28.0% Nuclear 22,780 8,390 63.2% RFC Combined cycle generation 21,617 23,033 -6.6% Gas turbine - simple cycle 35,585 30,888 13.2% Hydro-Pumped storage 5,781 5,555 3.9% Fossil 114,642 109,292 4.7% Nuclear 32,864 32,864 0.0% SERC Combined cycle generation 32,743 19,059 41.8% Gas turbine - simple cycle 43,822 25,632 41.5% Hydro-Pumped storage 20,557 7,176 65.1% Fossil 115,265 99,680 13.5% Nuclear 32,761 33,762 -3.1% SPP Combined cycle generation 10,318 5,796 43.8% Gas turbine - simple cycle 8,531 3,225 62.2% Hydro-Pumped storage 2,563 2,405 6.2% Fossil 31,509 30,629 2.8% Nuclear 1,160 1,160 0.0% TRE Combined cycle generation 25,675 11,319 55.9% Gas turbine - simple cycle 4,032 3,128 22.4% Hydro-Pumped storage 365 0 100.0% Fossil 50,418 38,100 24.4% Nuclear 5,091 4,924 3.3% WECC Combined cycle generation 49,537 24,059 51.4% Gas turbine - simple cycle 19,031 7,645 59.8% Hydro-Pumped storage 66,787 47,415 29.0% Fossil 59,036 46,080 21.9% Nuclear 9,532 8,330 12.6%

    TOTAL 1,055,632 763,945 27.6%

  • Conclusions and Recommendations

    Generating Availability Data System Task Force Report 13 February 18, 2011

    3. CCoonncclluussiioonnss aanndd RReeccoommmmeennddaattiioonnss

    Conclusions

    GADS is vital to measure generation reliability and performance information used in modeling energy resources and providing NERC committees, subcommittees, working groups and task forces data for:

    • Reliability Assessment reports and modeling;

    • Loss-of-load expectation (LOLE) studies and modeling;

    • Understanding how the changes in resource availability/performance translate into required Planning Reserve Margins as the resource mix and associated infrastructure changes;

    • Understanding the performance of existing and new resource technologies is essential to comprehending the reliability of the projected bulk power system in North America;

    • The use of historical event data to develop a severity metric risk measurement tool to establish the bulk power system’s characteristic performance curve;

    • Calculation and measurement of both Event and Condition-Driven risks, detailed event and performance information;

    • Monitor impacts of transmission outages on generators and generator outages on transmission; and

    • Power plant benchmarking, equipment analysis, design characteristics, projected performance, avoid long-term equipment/unit failures, etc.

    Collection of identified generation performance data should be mandatory:

    • Only 72.4 percent of the conventional generating units in North America report to GADS. 78.6 percent report GADS data from the US; 23.7 percent report from Canada. This equates to 291.7 GW missing in GADS.

    • Almost 50 percent of the new units entering service from 2000 to 2008 do not report to GADS. This represent 145 GW of new technology not reported to GADS for use in Reliability Assessments, resource planning, unit performance benchmarking, and other important activities.

    • Large amounts of hydro-Pumped storage, combined cycle and gas turbines are missing from each of the eight Regions. These units are needed to analyze the reliability of the bulk power system.

    Recommendations

    The specific recommendations are as follows:

    • The task force recommends that GADS data be provided for conventional generating units (not variable energy resources such as wind and solar) from all Generator Owners on the NERC

  • Conclusions and Recommendations

    Generating Availability Data System Task Force Report 14 February 18, 2011

    Compliance Registry, following Section 1600, Requests for Data or Information under NERC’s Rules of Procedures.

    • GADS data confidentiality will be covered under NERC’s Rules of Procedure Section 1500, Confidential Information.

    • The ten types of conventional generating units will be required under the mandatory rule:

    • Fossil steam including fluidized bed design;

    • Nuclear;

    • Gas turbines/jet engines (simple cycle and others modes);

    • Internal combustion engines (diesel engines);

    • Hydro units/pumped storage;

    • Combined cycle blocks and their related components (gas turbines and steam turbines);

    • Cogeneration blocks and their related components (gas turbines and steam turbines);

    • Multi-boiler/multi-turbine units;

    • Geothermal units; and

    • Other miscellaneous conventional generating units (such as variable fuel – biomass, landfill gases, etc) used to generate electric power for the grid and similar in design and operation as the units shown above and as defined by the GADS Data Reporting Instructions.

    • Generator Owners shall report their GADS data to NERC as outlined in the GADS Data Reporting Instructions (Appendix III) for design, event and performance data for generating unit types listed above for units greater than 20 MVA and generating facilities greater than 75 MVA.14

    • There will be a one-time effort by non-reporting generating companies to develop or modify existing computer data collection program outputs into GADS required formats.

    Generator Owners not listed on NERC’s Compliance Registry may report to GADS on a voluntary basis.

    15

    • Uniformity of data collection format is essential. All GADS data shall be collected using the GADS Data Reporting Instructions. The Data Reporting Instructions will be updated annually and each reporting company will be required to follow the latest Reporting Instructions for the current

    The GADSTF recommends specific data fields (listed in Appendix III of this report) in the design, event and performance records be required reporting and other data fields be voluntary. NERC will set up their edits to insure all required fields are completed. The generating companies will be responsible that the required fields are completed accurately.

    14 The 20 MVA and 75 MVA thresholds are consistent with the Statement of Compliance Registry Criteria (Revision 5.0) -

    http://www.nerc.com/files/Statement_Compliance_Registry_Criteria-V5-0.pdf 15 The GADSTF believes that equipment outage data is already collected by plant personnel, although they may not adhere to

    GADS requirements.

    http://www.nerc.com/files/Statement_Compliance_Registry_Criteria-V5-0.pdf�

  • Conclusions and Recommendations

    Generating Availability Data System Task Force Report 15 February 18, 2011

    year.16

    • In-house review of GADS data by the reporting generating company has always been strongly encouraged under voluntary data reporting. Each reporting generating company shall continue to be responsible for collecting, monitoring, updating and correcting their own GADS design, event, and performance data. Each generating company shall be responsible to setting a review process that meets these important needs. For example, the cause codes and verbal descriptions should be reviewed and identify the same problem. The type of outage must follow the rules described in IEEE 762 “Definitions for Reporting Electric Generating Unit Reliability, Availability and Productivity “and the GADS Data Reporting Instructions.

    All questions or needs for interpretation of the reporting instruction interpretations will be coordinated with NERC staff and the GADSTF.

    • Up-to-date design data is essential for many generating plant analyses. Generating companies shall review and update their design data annually or as recommended by NERC staff using the design time-stamping process. The first set of updates to the design data is recommended for 2011 to include a voluntary update as to the current unit design. Industry will be encouraged to voluntarily review and list changes to each generating unit during the 2005-2010 periods.

    • NERC shall track ownership changes as generating units are sold to other operating companies. These changes will include the name of the new owners and the date of generating unit transfer.

    • Proposed or projected generating units retirement dates shall not be collected in GADS.

    16 Updates will follow the Section 1600 process.

  • Action Plan for Mandatory Data Collection

    Generating Availability Data System Task Force Report 16 February 18, 2011

    44.. AAccttiioonn PPllaann ffoorr MMaannddaattoorryy DDaattaa CCoolllleeccttiioonn The GADSTF recommends that mandatory GADS reporting for conventional generating units beginning January 1, 2012. GADS data will be due 30 days after each calendar quarter. The first mandatory data will be from January 1 to March 31, 2012 and will be due to NERC no later than April 30, 2012. GADS data will be due at the end of April, July, October, and January each year after the first data submittal. Year-to-date GADS event and performance data in GADS format is required for each submittal for all units. The following implementation schedule is proposed.

    Action Proposed Schedule

    Report review by Resource Issues Subcommittee January 13, 2011

    Send report to PC and RIS for comments January 20, 2011

    Deadline for the PC and RIS to return comments February 4, 2011

    Call with RIS to discuss PC/RIS comments and how to address them. Approval by RIS.

    February 10, 2011

    Send final draft to RIS February 14, 2011

    Posting of final version for PC March 2011 Agenda February 18, 2011

    Approved by Planning Committee to seek Section 1600 Request March 8-9, 2011

    Prepare FERC documents and send to FERC March 18, 2011

    FERC Comment Period (21 days) complete April 8, 2011

    Public Posting Period (45 days) complete May 25, 2011

    Review of Comments after public posting complete May 31, 2011

    Approval by Planning Committee for Implementation per Section 1600 September 13-14, 2011

    Training for Data Submittal October-November, 2011

    Board of Trustees approval November 3, 2011

    Appeal (30 days) complete December 2, 2011

    GADS Mandatory starts January 1, 2012

    GADS Mandatory Data Due (First Quarter of 2012) April 30, 2012

  • Appendix I: GADS Task Force Scope

    Generating Availability Data System Task Force Report 17 February 18, 2011

    AAppppeennddiixx II:: GGAADDSS TTaasskk FFoorrccee SSccooppee Purpose The Generating Availability Data System Task Force (GADSTF) will review and recommend whether Generator Owners on the NERC Compliance Registry should report GADS data on a mandatory basis.

    Background NERC began collecting and analyzing power plant outage information in 1982. Since its inception, GADS has collected more than 11 million outage records used for benchmarking existing unit performance and support of bulk power system reliability. More than 5,300 generating units report to GADS annually. GADS data collection and assessment provides the basis for much of North America’s development of probabilistic resource adequacy assessments.

    Data submittal to GADS17

    Activities

    is currently voluntary and most (75 percent) but not all North American electric generating owners provide data.

    To accomplish its purpose, the GADSTF will perform the following activities:

    1. Review GADS and determine what data currently collected by GADS is needed to support and improve bulk power system reliability.

    2. Determine if collection of the data identified above should be mandatory by Generation Owners on the NERC Compliance Registry to support bulk power system reliability.

    3. If GADS were made mandatory, recommend whether a Section 1600 data request should be used or a new standard should be developed.

    4. Define data access to individual GADS unit data.

    The GADSTF will target provision of its recommendations to the Planning Committee at its December 2010 meeting.

    Membership The GADSTF members will be comprised of one Generator Owner and one Resource Planner from each Region (16 members in total). A NERC staff member will be assigned as the secretary.

    Governance The GADSTF will report to the Resource Issues Subcommittee of the NERC Planning Committee.

    Meetings Face-to-face meetings will be held as needed. Conference calls and Web meetings will be used to address focused topics. 17 GADS data gathering definitions are based on the IEEE Standard 762, “Definitions for Reporting Electric Generating Unit

    Reliability, Availability and Productivity.”

  • Appendix II: GADS Task Force Subgroup Question

    Generating Availability Data System Task Force Report 18 February 18, 2011

    AAppppeennddiixx IIII:: GGAADDSS TTaasskk FFoorrccee SSuubbggrroouupp QQuueessttiioonnss The GADSTF leadership asked participants to consider the past and future of GADS with these questions in mind:

    1. Has GADS been useful in the past? GADS has been collected by NERC since 1982. There are many uses of the data for plant engineers, generating staff members, system planners, independent service operators, architect engineers, government agencies, and others. There are a number of free public reports issued to show the performance of various types of generating plants (fossil, nuclear, gas turbine, etc.) such as Generating Availability Report (GAR) and the software pc-GAR. With this in mind, review the uses of GADS data and ask:

    a. Does your ISO use GADS to measuring unit EFORd

    b. Does GADS data help you to review poor unit designs/performance and help you to determine what makes generating units more reliable?

    and performance?

    c. Does GADS help to review unit benchmarking for realistic unit goals and performance?

    d. Does GADS assist your work in evaluate unit design and equipment reliability?

    2. Is it essential now?

    a. Is the same information needed today as new plants are being constructed? b. Is unit performance by independent service operators and dispatch still a valuable tool?

    3. Is it worth the time, cost, and effort to continue collecting its data?

    4. If there were no GADS, would it be missed?

    5. Review GADS and determine the data required to support and improve bulk power system reliability.

    6. Determine what should be provided to NERC on a mandatory basis to support bulk power system reliability.

    7. For the data that is mandatory, identify the appropriate course of action towards data collection: Section 1600 Requests for Data Information or through the NERC Standard process.

    8. Are the GADS Data Release Guidelines still valid?18

    a. If not valid, what modifications are required towards determining appropriate access?

    Define data access for individual GADS unit data. The GADSTF will review the Release Guidelines approved in by the NERC Board of Trustees in the 1980s to determine:

    b. Should GADS data be opened to allow individual Regional Entity reports?

    18 The GADS Data Release Guidelines are in Appendix I of the GADS Data Reporting Instructions.

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 19 February 18, 2011

    AAppppeennddiixx IIIIII:: GGAADDSS TTaasskk FFoorrccee DDeessiiggnn,, EEvveenntt,, aanndd PPeerrffoorrmmaannccee RReeccoommmmeennddaattiioonnss

    Design - Fossil Steam Record Fields GADSTF Recommendation 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Unit Loading Characteristics at Time of Unit’s Design All Parts Required 4 Design and Construction Contractors Voluntary 5 Boiler - Manufacturer All Parts Required 6 Boiler - Enclosure All Parts Required 7 Boiler - Nameplate Conditions All Parts Required 8 Boiler - Fuel Firing System All Parts Required 9 Boiler - Type of Circulation All Parts Required

    10 Boiler - Circulation System Voluntary 11 Boiler - Type of Furnace Bottom All Parts Required 12 Boiler - Furnace (Surface) Release Rate Voluntary 13 Boiler - Furnace Volumetric Heat Release Rate Voluntary 14 Boiler - Primary and Secondary Design Fuels Not All Parts Required (All parts required except fuel characteristics)

    15 Boiler - Fuel Oil Forwarding System Voluntary 16 Boiler - Burner System (General) Voluntary 17 Boiler - Burner Management System Voluntary 18 Boiler - Fuel Oil Burner Supply System (In-plant) Voluntary 19 Boiler - Igniter System Not All Parts Required

    (All parts required except manufacturer and type)

    20 Boiler - Coal Handling Systems - Yard Area Voluntary 21 Boiler - Coal Feeders for Pulverizers or Coal Mills Voluntary 22 Boiler - Pulverizer or Coal Mill Capability Not All Parts Required (All parts required except flow rate, minimum and type)

    23 Boiler - Primary Air System Not All Parts Required

    (All parts required except manufacturer, drive and type)

    24 Boiler - Exhausters for Pulverizers or Coal Mills Not All Parts Required

    (All parts required except drive manufacturer, minimum and type)

    25 Boiler - Balanced Draft or Pressurized Draft All Parts Required 26 Boiler - Forced Draft Fan System Not All Parts Required

    (All parts required except manufacturer, drive manufacturer, minimum and type)

    27 Boiler - Induced Draft Fan System Not All Parts Required

    (All parts required except manufacturer, drive manufacturer, minimum and type)

    28 Boiler - Gas Recirculating Fan System Not All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 20 February 18, 2011

    Design - Fossil Steam Record Fields GADSTF Recommendation

    (All parts required except manufacturer, drive manufacturer, minimum and type)

    29 Boiler - Primary Air Heating System Not All Parts Required

    (All parts required except manufacturer)

    30 Boiler - Secondary Air Heating System Not All Parts Required (All parts required except manufacturer)

    31 Boiler - Soot Blowers Voluntary 32 Boiler - Bottom Ash Handling System Voluntary 33 Boiler - Mechanical Fly Ash Precipitator System Voluntary 34 Boiler - Electrostatic Precipitator All Parts Required 35 Boiler - Baghouse Fly Ash System Not All Parts Required

    (All parts required except booster fan manufacturer, booster fan drive manufacturer and type)

    36 Boiler - Fly Ash Transport System Voluntary 37 Flue Gas Desulfurization (FGD) Manufacturer All Parts Required 38 FGD Installation Date All Parts Required 39 FGD Cycle Type All Parts Required 40 FGD Absorbing Reagents Voluntary 41 FGD Flow Rates Voluntary 42 FGD By-pass Capacity All Parts Required 43 FGD Modules All Parts Required 44 Scrubber/Absorber Tower Type All Parts Required 45 FGD Fans Not All Parts Required

    (All parts required except fan manufacturer, fan drive manufacturer, minimum and type)

    46 Scrubber Recycle (Liquid) Pumps Voluntary 47 Stack Gas Reheater Methods Voluntary 48 FGD Primary Mist Eliminator Voluntary 49 Steam Turbine - Manufacturer All Parts Required plus

    (All parts required including manufacturer of each steam turbine section)

    50 Steam Turbine - Enclosure All Parts Required 51 Steam Turbine - Nameplate Rating in MW All Parts Required 52 Steam Turbine - Type of Steam Turbine All Parts Required

    53 Steam Turbine – Manufacturer’s Building Block or Design Codes All Parts Required

    54 Steam Turbine - Steam Conditions All Parts Required 55 Steam Turbine - High, Intermediate, and Low Pressure Sections All Parts Required 56 Steam Turbine - Governing System All Parts Required 57 Steam Turbine - Lube Oil System Voluntary 58 Generator - Manufacturer All Parts Required 59 Generator - Enclosure All Parts Required 60 Generator - Ratings and Power Factor All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 21 February 18, 2011

    Design - Fossil Steam Record Fields GADSTF Recommendation 61 Generator - Cooling System All Parts Required 62 Generator - Hydrogen Pressure All Parts Required 63 Exciter - Configuration All Parts Required 64 Auxiliary Systems - Main Condenser All Parts Required 65 Auxiliary Systems - Condenser Cleaning System Voluntary 66 Auxiliary Systems - Condensate Polishing System Voluntary 67 Auxiliary Systems - Condensate Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    68 Auxiliary Systems - Condensate Booster Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    69 Auxiliary Systems - Feedwater (Boiler Feed) Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    70 Auxiliary Systems - Feedwater (Boiler Feed) Pump Drives All Parts Required 71 Auxiliary Systems - Startup Feedwater (Boiler Feed) Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and percent capacity)

    72 Auxiliary Systems - High Pressure Feedwater Heaters Not All Parts Required (All parts required except manufacturer)

    73 Auxiliary Systems - Intermediate Pressure Feedwater Heaters Not All Parts Required

    (All parts required except manufacturer)

    74 Auxiliary Systems - Low Pressure Feedwater Heaters Not All Parts Required (All parts required except manufacturer)

    75 Auxiliary Systems - Deaerator Heater All Parts Required 76 Auxiliary Systems - Heater Drain Pumps Voluntary 77 Auxiliary Systems - Circulating Water Pumps Not All Parts Required

    (All parts required except manufacturer drives)

    78 Auxiliary Systems - Cooling Tower and Auxiliaries Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and booster pump information)

    79 Balance of Plant - Main Transformer All Parts Required 80 Balance of Plant - Unit Auxiliary Transformer All Parts Required 81 Balance of Plant - Station Service Transformer All Parts Required 82 Balance of Plant - Auxiliary (Start-up) Boiler Voluntary 83 Balance of Plant - Auxiliary Generator Voluntary 84 Balance of Plant - Plant Process Computer Voluntary 85 CEMS - General Voluntary 86 CEMS - Pollutant Gas and Diluent Gas Analyzers/Monitors Voluntary 87 CEMS - Flue Gas Flow Monitors Voluntary 88 CEMS - Data Acquisition and Reporting System Voluntary 89 Selective Non-Catalytic Reduction System (SNCR) Not All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 22 February 18, 2011

    Design - Fossil Steam Record Fields GADSTF Recommendation

    (All parts required except injector type and location and gas type)

    90 Selective Catalytic Reduction System (SCR) Not All Parts Required

    (All parts required except reactor type, injector type and location, gas type)

    91 Catalytic Air Heaters Not All Parts Required

    (All parts required except injector type and location and gas type)

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 23 February 18, 2011

    Design - Fluidized Bed Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Unit Loading Characteristics at Time of Unit’s Design All Parts Required 4 Design and Construction Contractors Voluntary 5 Boiler – Manufacturer All Parts Required 6 Boiler – Enclosure All Parts Required 7 Boiler - Nameplate Conditions All Parts Required 8 Boiler - Fuel Firing System All Parts Required 9 Boiler - Method of Solid Feed to the Boiler All Parts Required

    10 Boiler - Type of Circulation All Parts Required 11 Boiler - Circulation System Not All Parts Required

    (All parts required except manufacturer, drive manufacture, and type)

    12 Boiler - Heat Exchanger Voluntary 13 Boiler - Char Reinjection System Not All Parts Required

    (All parts required except separation temperature, liner, pressure, type)

    14 Boiler - Design Parameters Voluntary 15 Boiler - Furnace (Surface) Release Rate Voluntary 16 Boiler - Furnace Volumetric Heat Release Rate Voluntary 17 Boiler - Primary and Secondary Design Fuel, Sorbents, and

    Non-sorbent Not All Parts Required (All parts required except fuel characteristics)

    18 Boiler - Fuel Oil Forwarding System Voluntary 19 Boiler - Burner Management Systems Voluntary 20 Boiler - Fuel Oil Burner Supply System (In-plant) Voluntary 21 Boiler - Burner Systems Not All Parts Required

    (All parts required except duct burner type, BTU rate)

    22 Boiler - Solid Fuel Handling Systems - Yard Area Not All Parts Required (All parts required except manufacturer)

    23 Boiler - Solid Fuel Crushers Voluntary 24 Boiler - Solid Fuel Feed to Boiler Not All Parts Required

    (All parts required except type, manufacturer, drive manufacturer, feeder information)

    25 Boiler - Secondary Fuel Feed (other than coal) Voluntary 26 Boiler - Sorbent Crusher or Pulverizer Capability Not All Parts Required

    (All parts required except type, manufacturer, drive manufacturer, sorbent feeder information)

    27 Boiler - Sorbent Feed System to Boiler Not All Parts Required

    (All parts required except type, manufacturer, drive manufacturer, feeder information)

    28 Boiler - Bed Material Injection Feed System Not All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 24 February 18, 2011

    Design - Fluidized Bed Record Fields GADSTF Recommendations

    (All parts required except type, manufacturer, drive manufacturer, feeder information)

    29 Boiler - Balanced Draft or Pressurized Draft All Parts Required 30 Boiler - Primary Air (Forced Draft) Fan System Not All Parts Required

    (All parts required except manufacturer, type) 31 Boiler - Induced Draft Fan System Not All Parts Required

    (All parts required except manufacturer, type)

    32 Boiler - Secondary Air Fan System Not All Parts Required (All parts required except manufacturer, type)

    33 Boiler - Primary Air Heating System Not All Parts Required

    (All parts required except manufacturer)

    34 Boiler - Secondary Air Heating System Not All Parts Required (All parts required except manufacturer)

    35 Boiler - Soot Blowers Voluntary 36 Boiler - Bed Material Coolers Not All Parts Required

    (All parts required except manufacturer and cooler type) 37 Boiler - Bed Material Handling System Not All Parts Required

    (All parts required except manufacturer)

    38 Boiler - Char Disposal System Not All Parts Required (All parts required except manufacturer)

    39 Boiler - Electrostatic Precipitator All Parts Required 40 Boiler - Baghouse Fly Ash System Voluntary 41 Boiler - Fly Ash Transport System Voluntary 42 Steam Turbine - Manufacturer All Parts Required plus

    (All parts required including manufacturer of each steam turbine section)

    43 Steam Turbine - Enclosure All Parts Required 44 Steam Turbine - Nameplate Rating in MW All Parts Required 45 Steam Turbine - Type of Steam Turbine All Parts Required

    46 Steam Turbine – Manufacturer’s Building Block or Design Codes All Parts Required

    47 Steam Turbine - Steam Conditions All Parts Required

    48 Steam Turbine - High, Intermediate, and Low Pressure Sections All Parts Required

    49 Steam Turbine - Governing System All Parts Required 50 Steam Turbine - Lube Oil System Voluntary 51 Generator - Manufacturer All Parts Required 52 Generator - Enclosure All Parts Required 53 Generator - Ratings and Power Factor All Parts Required 54 Generator - Cooling System All Parts Required 55 Generator - Hydrogen Pressure All Parts Required 56 Exciter - Configuration All Parts Required 57 Auxiliary Systems - Main Condenser All Parts Required 58 Auxiliary Systems - Condenser Cleaning System Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 25 February 18, 2011

    Design - Fluidized Bed Record Fields GADSTF Recommendations 59 Auxiliary Systems - Condensate Polishing System Voluntary 60 Auxiliary Systems - Condensate Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    61 Auxiliary Systems - Condensate Booster Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    62 Auxiliary Systems - Feedwater (Boiler Feed) Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and minimum)

    63 Auxiliary Systems - Feedwater (Boiler Feed) Pump Drives All Parts Required 64 Auxiliary Systems - Startup Feedwater (Boiler Feed) Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and percent capacity)

    65 Auxiliary Systems - High Pressure Feedwater Heaters Not All Parts Required (All parts required except manufacturer)

    66

    Auxiliary Systems - Intermediate Pressure Feedwater Heaters Not All Parts Required

    (All parts required except manufacturer) 67 Auxiliary Systems - Low Pressure Feedwater Heaters Not All Parts Required

    (All parts required except manufacturer) 68 Auxiliary Systems - Deaerator Heater All Parts Required

    69 Auxiliary Systems - Heater Drain Pumps Voluntary 70 Auxiliary Systems - Circulating Water Pumps Not All Parts Required

    (All parts required except manufacturer drives) 71 Auxiliary Systems - Cooling Tower and Auxiliaries Not All Parts Required

    (All parts required except manufacturer, drive manufacturer and booster pump information)

    72 Balance of Plant - Main Transformer All Parts Required 73 Balance of Plant - Unit Auxiliary Transformer All Parts Required 74 Balance of Plant - Station Service Transformer All Parts Required 75 Balance of Plant - Auxiliary (Start-up) Boiler Voluntary 76 Balance of Plant - Auxiliary Generator Voluntary 77 Balance of Plant - Plant Process Computer Voluntary 78 CEMS - General Voluntary 79 CEMS - Pollutant Gas and Diluent Gas Analyzers/Monitors Voluntary 80 CEMS - Flue Gas Flow Monitors Voluntary 81 CEMS - Data Acquisition and Reporting System Voluntary 82 Selective Non-Catalytic Reduction System (SNCR) Not All Parts Required

    (All parts required except injector type and location and gas type)

    83 Selective Catalytic Reduction System (SCR) Not All Parts Required

    84 (All parts required except reactor type, injector type and location, gas type)

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 26 February 18, 2011

    Design - Fluidized Bed Record Fields GADSTF Recommendations 85 Catalytic Air Heaters Not All Parts Required

    (All parts required except injector type and location and gas type)

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 27 February 18, 2011

    Design - Nuclear Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Reactor Manufacturer, type, temperatures, pressures All Parts Required 4 Primary loop or recirculating pump manufacturer Voluntary 5 Primary loop or recirculating pump type drives All Parts Required 6 Steam generator manufacturer All Parts Required 7 Control rods, shim, weight of uranium, enrichment, etc Voluntary 8 Fuel type All Parts Required 9 Fuel cladding material Voluntary

    10 Containment type All Parts Required 11 Architect/Engineer Voluntary 12 Steam Turbine - Manufacturer All Parts Required plus

    (All parts required including manufacturer of each steam turbine section)

    13 Steam Turbine - Enclosure All Parts Required 14 Steam Turbine - Nameplate Rating in MW All Parts Required 15 Steam Turbine - Type of Steam Turbine All Parts Required

    16 Steam Turbine – Manufacturer’s Building Block or Design Codes All Parts Required

    17 Steam Turbine - Steam Conditions All Parts Required

    18 Steam Turbine - High, Intermediate, and Low Pressure Sections All Parts Required

    19 Steam Turbine - Governing System All Parts Required 20 condenser Manufacturer Not All Parts Required

    (All parts required except manufacturer) 21 Type cooling water Voluntary 22 Cooling water origin All Parts Required 23 Number of condensate pumps All Parts Required 24 Condensate pump manufacturer Voluntary 25 Number of circulating water pumps All Parts Required 26 Circulating water pump manufacturer Voluntary 27 Number of secondary loop or single loop feed pumps All Parts Required 28 Number of spare feed pumps which are same size All Parts Required

    29 Number of spare or startup feed pumps which smaller than one All Parts Required

    30 Normal feed pump manufacturer Voluntary 31 Normal feed pump type drive All Parts Required 32 Normal feed pump, enter All Parts Required 33 Normal feed pump maximum speed in RPM All Parts Required 34 Number of feed water heaters on high side of feed pump All Parts Required 35 High pressure feed water heater manufacturer Voluntary 36 Number of feed water heaters on low side of feed pump All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 28 February 18, 2011

    Design - Nuclear Record Fields GADSTF Recommendations 37 Low pressure feed water heater manufacturer Voluntary 38 Computer system supplier Voluntary 39 Number of computer Voluntary 40 Computer system capability Voluntary 41 generator Manufacturer All Parts Required 42 Generator type All Parts Required 43 Generator Type All Parts Required 44 Nameplate power factor in percent All Parts Required 45 Cooling medium, stator/rotor All Parts Required 46 Cooling method, stator/rotor All Parts Required 47 Hydrogen pressure in PSIG at nameplate MVA All Parts Required 48 Number of exciters required by the unit All Parts Required 49 alternator rectifier All Parts Required 50 Type normal exciters All Parts Required 51 Type drive for normal exciters, if rotating All Parts Required 52 Number of spare exciters available to the unit All Parts Required 53 if more than 50% of generator is outdoors Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 29 February 18, 2011

    Design - Hydro/Pumped Storage Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Hydro or Pumped Storage All Parts Required 4 Turbine/Pump manufacturer Voluntary 5 Turbine/Pump impulse type All Parts Required 6 Turbine/Pump reaction type All Parts Required 7 Turbine rated head to nearest foot All Parts Required 8 Turbine rated speed to nearest RPM All Parts Required 9 Turbine rating in horsepower to nearest 100 hp Voluntary

    10 Turbine runner, type All Parts Required 11 Number of buckets/blades per runner Voluntary 12 Governor type All Parts Required 13 Turbine bearing type All Parts Required 14 Thrust bearing location All Parts Required 15 Guide bearing, location All Parts Required 16 Nameplate rating of unit (MVA times power factor) All Parts Required 17 Generator Manufacturer All Parts Required 18 Generator type All Parts Required 19 Generator Type All Parts Required 20 Nameplate power factor in percent All Parts Required 21 Cooling medium, stator/rotor All Parts Required 22 Cooling method, stator/rotor All Parts Required 23 Hydrogen pressure in PSIG at nameplate MVA All Parts Required 24 Number of exciters required by the unit All Parts Required 25 alternator rectifier All Parts Required 26 Type normal exciters All Parts Required 27 Type drive for normal exciters, if rotating All Parts Required 28 Number of spare exciters available to the unit All Parts Required 29 if more than 50% of generator is outdoors Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 30 February 18, 2011

    Design - Diesel Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) Voluntary 2 Date the Unit Entered Service Voluntary 3 Diesel engine manufacturer Voluntary 4 Fuel, type (design) Voluntary 5 Cylinders, number per engine Voluntary 6 Cycle, type Voluntary 7 Startup system, type Voluntary 8 Time for normal cold start to full load in seconds Voluntary 9 Time for emergency cold start to full load in seconds Voluntary

    10 Coolant, type Voluntary 11 Generator Manufacturer Voluntary 12 Generator type Voluntary 13 Generator Type Voluntary 14 Nameplate power factor in percent Voluntary 15 Cooling medium, stator/rotor Voluntary 16 Cooling method, stator/rotor Voluntary 17 Hydrogen pressure in PSIG at nameplate MVA Voluntary 18 Number of exciters required by the unit Voluntary 19 alternator rectifier Voluntary 20 Type normal exciters Voluntary 21 Type drive for normal exciters, if rotating Voluntary 22 Number of spare exciters available to the unit Voluntary 29 if more than 50% of generator is outdoors Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 31 February 18, 2011

    Design - Gas Turbine/Jet Engines Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Engine manufacturer All Parts Required 4 Engine type All Parts Required 5 Engines, number per unit All Parts Required 6 Expander turbines, number per unit if applicable Voluntary 7 Type expander, if applicable Voluntary 8 Cycle type Voluntary 9 Startup system All Parts Required

    10 Startup type Voluntary 11 Type of Fuel(s) that will be used All Parts Required 12 Enter (1) if sound attenuators located at inlet Voluntary 13 Enter (1) if sound attenuators located at outlet Voluntary 14 Enter (1) if sound attenuators located in building enclosures Voluntary 15 Time for normal cold start to full load in seconds All Parts Required 16 Time for emergency cold start to full load in seconds All Parts Required 17 Black start capability All Parts Required 18 Do you have Selective Non-catalytic Reduction (SNCR) All Parts Required 19 SNCR reagent Voluntary 20 SNCR injection equipment location Voluntary 21 Number of SNCR injectors Voluntary 22 SNCR carrier gas type Voluntary 23 SNCR carrier gas total flow rate (thousands of lbs. /hr.) Voluntary 24 SNCR carrier gas pressure at nozzle (psi) Voluntary 25 SNCR carrier gas nozzle exit velocity (thousands of ft. /sec.) Voluntary 26 Do you have Selective Catalytic Reduction (SCR) All Parts Required 27 SCR reactor Voluntary 28 SCR reagent Voluntary 29 SCR ammonia injection grid location Voluntary 30 SCR duct configuration Voluntary 31 SCR Catalyst Element Type Voluntary 32 SCR catalyst support material Voluntary 33 SCR catalytic material configuration Voluntary 34 SCR catalyst surface face area (thousands of square feet) Voluntary 35 SCR catalyst volume (thousands of cubic feet) Voluntary 36 Number of SCR catalytic layers Voluntary 37 SCR catalytic layer thickness (1/1000 inches) Voluntary 38 SCR sootblower type Voluntary 39 SCR sootblower manufacturer Voluntary 40 Catalytic Air Heater (CAH) element type Voluntary 41 CAH catalyst material Voluntary 42 CAH catalyst support material Voluntary 43 CAH catalyst material configuration Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 32 February 18, 2011

    Design - Gas Turbine/Jet Engines Record Fields GADSTF Recommendations

    44 CAH catalyst material total face area (thousands of square feet) Voluntary

    45 CAH catalyst material open face area (thousands of square feet) Voluntary

    46 CAH catalyst material layer thickness (1/1000 inches) Voluntary 47 Generator Manufacturer All Parts Required 48 Generator type All Parts Required 49 Generator Type All Parts Required 50 Nameplate power factor in percent All Parts Required 51 Cooling medium, stator/rotor All Parts Required 52 Cooling method, stator/rotor All Parts Required 53 Hydrogen pressure in PSIG at nameplate MVA All Parts Required 54 Number of exciters required by the unit All Parts Required 55 alternator rectifier All Parts Required 56 Type normal exciters All Parts Required 57 Type drive for normal exciters, if rotating All Parts Required 58 Number of spare exciters available to the unit All Parts Required 59 if more than 50% of generator is outdoors Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 33 February 18, 2011

    Design - Combined Cycle Block Record Fields GADSTF Recommendations 1 Identification (Utility and number ID, unit name) All Parts Required 2 Date the Unit Entered Service All Parts Required 3 Block Loading Characteristics at Time of Design All Parts Required 4 Design and Construction Contractors Voluntary 5 Total Nameplate Rating of all units in the block (in MW) All Parts Required 6 Does the block have co-generation (steam for other than

    electric generation) capabilities All Parts Required 7 What is the number of gas turbines/jet engines per Heat

    Recovery Steam Generator (HRSG) All Parts Required 8 What is the number of gas turbines/jet engines - Heat

    Recovery Steam Generator (HRSG) Trains All Parts Required 9 Total number of gas turbines/jet engines in block All Parts Required

    10 Total number of Heat Recovery Steam Generator (HRSG) in block All Parts Required

    11 Total number of Steam Turbines in block All Parts Required 12 Identification All Parts Required 13 Date the gas turbine/jet engine Entered Service All Parts Required 14 Design and Construction Contractors Voluntary 15 Gas turbine/jet engine nameplate rating in MW All Parts Required 16 Engine manufacturer All Parts Required 17 Engine type All Parts Required 18 Expander turbines, number per unit if applicable Voluntary 19 Type expander, if applicable Voluntary 20 Engine Cycle type Voluntary 21 Engine Startup system All Parts Required 22 Engine Startup type Voluntary 23 Engine Type of Fuel(s) that will be used All Parts Required 24 Enter (1) if sound attenuators located at inlet Voluntary 25 Enter (1) if sound attenuators located at outlet Voluntary 26 Enter (1) if sound attenuators located in building enclosures Voluntary 27 Time for normal cold start to full load in seconds Voluntary 28 Time for emergency cold start to full load in seconds Voluntary 29 Black start capability All Parts Required 30 Engine Model Number (MS 7001EA, W501AA, FT4A11, etc.) All Parts Required 31 Selective Non-catalytic Reduction equipment? All Parts Required 32 SNCR reagent Voluntary 33 SNCR injector type Voluntary 34 SNCR injection equipment location Voluntary 35 Number of SNCR injectors Voluntary 36 SNCR carrier gas type Voluntary 37 SNCR carrier gas total flow rate (thousands of lbs. /hr.) Voluntary 38 SNCR carrier gas pressure at nozzle (psi) Voluntary 39 SNCR carrier gas nozzle exit velocity (thousands of ft. /sec.) Voluntary

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 34 February 18, 2011

    Design - Combined Cycle Block Record Fields GADSTF Recommendations 40 Selective Catalytic Reduction equipment? All Parts Required 41 CR reactor Voluntary 42 SCR reagent Voluntary 43 SCR ammonia injection grid location Voluntary 44 SCR duct configuration Voluntary 45 SCR Catalyst Element Type Voluntary 46 SCR catalyst support material Voluntary 47 SCR catalytic material configuration Voluntary 48 SCR catalyst surface face area (thousands of square feet) Voluntary 49 SCR catalyst volume (thousands of cubic feet) Voluntary 50 Number of SCR catalytic layers Voluntary 51 SCR catalytic layer thickness (1/1000 inches) Voluntary 52 SCR sootblower type Voluntary 53 SCR sootblower manufacturer Voluntary 54 CAH element type Voluntary 55 CAH catalyst material Voluntary 56 CAH catalyst support material Voluntary 57 CAH catalyst material configuration Voluntary

    58 CAH catalyst material total face area (thousands of square feet) Voluntary

    59 CAH catalyst material open face area (thousands of square feet) Voluntary

    60 CAH catalyst material layer thickness (1/1000 inches) Voluntary 61 Generator - Manufacturer All Parts Required 62 Number of generators per gas turbine/jet engine All Parts Required 63 Generator - Enclosure Voluntary 64 Generator - Ratings and Power Factor All Parts Required 65 Generator - Cooling System All Parts Required 66 Generator - Hydrogen Pressure All Parts Required 67 Exciter - Configuration All Parts Required 68 Enter the unit code information for each GT/Jet that

    supplies heat energy to this single HRSG. All Parts Required 69 HRSG - Manufacturer All Parts Required 70 HRSG - Enclosure Voluntary 71 HRSG - Nameplate Steam Conditions When fired situation All Parts Required 72 HRSG - Nameplate Steam Conditions When unfired situation All Parts Required

    73 Is the HRSG top-supported (pressure parts hang like in a utility boiler) or bottom-supported? Voluntary

    74 Does the HRSG have vertical or horizontal heat exchangers? Voluntary

    75

    Is the duct insulation is cold-casing (insulation on the inside of the duct) or hot casing (insulation on the outside of the duct)? Voluntary

    76 HRSG Supplemental Firing (duct burners) All Parts Required 77 HRSG bypass capabilities All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 35 February 18, 2011

    Design - Combined Cycle Block Record Fields GADSTF Recommendations 78 Does the HRSG have a drum or is it once-through design? All Parts Required 79 HRSG - Circulation System Voluntary 80 HRSG – Duct Burner System (General) Voluntary 81 HRSG – Duct Burner Management System Voluntary 82 Auxiliary Systems - Feedwater (HRSG Feed) Pumps Not All Parts Required

    (All parts required except operating speed, minimum number, percent of capacity)

    83 Auxiliary Systems - Feedwater (HRSG Feed) Pump Drives All Parts Required 84 Auxiliary Systems - Startup Feedwater (HRSG Feed) Pumps Voluntary 85 Auxiliary Systems - High Pressure Feedwater Heaters Voluntary

    86 Auxiliary Systems - Intermediate Pressure Feedwater Heaters Voluntary

    87 Auxiliary Systems - Low Pressure Feedwater Heaters Voluntary 88 Auxiliary Systems - Deaerator Heater Voluntary 89 Auxiliary Systems - Heater Drain Pumps Voluntary 90 Steam Turbine Identification (utility-unit codes) All Parts Required 91 Does steam turbine have bypass capability? All Parts Required 92 Steam Turbine - Manufacturer All Parts Required 93 Steam Turbine - Enclosure Voluntary 94 Steam Turbine - Nameplate Rating in MW All Parts Required 95 Steam Turbine - Type of Steam Turbine All Parts Required

    96 Steam Turbine – Manufacturer’s Building Block or Design Codes All Parts Required

    97 Steam Turbine - Steam Conditions All Parts Required

    98 Steam Turbine - High, Intermediate, and Low Pressure Sections All Parts Required

    99 Steam Turbine - Governing System All Parts Required 100 Steam Turbine - Lube Oil System Voluntary 101 Generator - Manufacturer All Parts Required 102 Generator - Enclosure Voluntary 103 Generator - Ratings and Power Factor All Parts Required 104 Generator - Cooling System All Parts Required 105 Generator - Hydrogen Pressure All Parts Required 106 Exciter - Configuration All Parts Required 107 Auxiliary Systems - Main Condenser Not All Parts Required

    (All parts required except condenser manufacturer and ejector manufacturer)

    108 Auxiliary Systems - Condenser Cleaning System Voluntary 109 Auxiliary Systems - Condensate Polishing System Voluntary 110 Auxiliary Systems - Condensate Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer, and minimum)

    111 Auxiliary Systems - Condensate Booster Pumps Not All Parts Required

  • Appendix III: GADS Task Force Design, Event, and Performance Recommendations

    Generating Availability Data System Task Force Report 36 February 18, 2011

    Design - Combined Cycle Block Record Fields GADSTF Recommendations

    (All parts required except manufacturer, drive manufacturer, and minimum)

    112 Auxiliary Systems - Circulating Water Pumps Not All Parts Required

    (All parts required except manufacturer, drive manufacturer, and minimum)

    113 Auxiliary Systems - Cooling Tower and Auxiliaries Not All Parts Required

    (All parts required except manufacturer, drive manufacturer, and bo